kinneae



(No Model.)

W. R. KINNEAR.

FILE BOX.

Fiyi Patenlted 0015.23, 1888.

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WI TJV .ESSES l IJVVEJVTOR i. I

7mm r UNITED STATES PATENT OFFICE.

VILLIAM It. KINNEAB, OF COLUMBUS, OHIO, ASSIGNOR TO W. B. KINNEAR St OO., OF SAME PLACE.

FILE-Box.

SPECIFICATION forming part of Letters Patent No, 391,751, dated October 23, 888.

Application tiled February 24, 1888. Serial No. 265,215. (No model.)

To @ZZ whom, it may concern:

Be it known that I, WILLIAM R. KINNEAR, a citizen of the United States, and a resident of Columbus, in the county of Franklin and State of Ohio, have invented new and useful Improvements in File-Boxes, of which the following is a full and exact description, reference being had to the accompanying drawings, making part of this specification.

This invention relates to improvements in file-boxes; and it consists in the construction and combination of the parts, whereby the contents of the same are prevented from becoming ignited by iire reaching through the front of the box. A cardholder is provided in the face ofthe box, easy of manipulation and integral with the box.

In the drawings, Figure l is a perspective view of a tile-box of ordinary construction provided with my iireproof front. Fig. 2 is a side elevation ot` the same. Fig. 3 is a longitudinal section showing the construction of the front, where an air-space is provided between the outer and inner walls. Fig. et is a longitudinal section showing the construction whereby tire-prooting material is so arranged upon the front as to prevent the conduction of heat. Fig. 5 is a longitudinal section showing the construction of the front so arranged as to receive loose non-condncting material. Fig. 6 is a detailed view of the card-holder in section.

In the drawings, the letter A represents a box of an ordinary construction for holding 3 5 documents, &c. This box I construct of sheet metal, turning the forward edges of the sides so as to form an edging, by means of which the double front is secured thereto. Fitting over the end of the box and flush with the returned edges is the inner wall, B. Placed over the inner wall is the outer wall, C, the clipped edges of which extend beyond the same, so that they may be turned over the turned edges of the box A and the edge ofthe '45 inner wall, B, binding the whole structure 5o between the two. In the beveled surface of the outer wall, between the depressed edges B and the said wall, are provided the perforations B2, by means of which a constant eirculation of air is provided, which, acting as a conductor of heat, retards the conduction of the same from either wall to the other.

Before mounting the wall B upon the box it is stamped, substantially as shown in the drawings, with an embossed design to receive the ring-handle and to provide the recesses and slots D for the cardholder D. The said cardholder is formed, substantially as shown, by cutting an opening in the face of the wall large enough to expose the card, extending the edge of the said opening beyond the face ofthe wall, and forming a slot over the top of the upper side of the same for the insertion of the card. The lower edge of this Aslot is turned slightly forward to act as a guide for the card. Behind the aperture and soldered to the face of the wall is a straight piece of metal, which forms, in connection with the extending edges of the opening, a recess in which the indexcard rests. By means of this construction of a card-holder the card may be inserted or re- 75 moved with ease and without in any way destroying the appearance of the front of the tile-box. When I find it desirable to form but one -wall in the front of the box, the design of this cardholder is somewhat varied. In this modified construction the slot over the extending edge at the top of the opening is omitted, and in its stead the piece which covers the aperture is provided with a turned upper edge not in contact with the wall, forming thereby at that point the receptacle for the card. By means of this construction the card is not displaced and cannot be easily removed by accident, and in eases where locks are provided it cannot be removed and replaced without unlocking the case.

In the construction shown in Fig. 5 I have omitted the air-space between the walls B and C, and have instead inserted therein heat-nonconducting` materialsnchV as asbestus, min- 95 eral wool, &c.-whereby the heat is prevented from passing from one wall to the other.

In some cases I omit altogether the inner metallic wall, B, using instead a heat-non-con-- ducting lining--such as asbestus-(shown in roo Fig. 4) which I bind between the turned edges of the box A and the rolled edge of the wall C, as I do with the metallic sheet. This construction has an advantage over the former constructions, in that it is slightly cheaper, saving, as it does, the cost of the material for forming the wall B and of the labor of manipulating the same.

It is obvious that I do not conne myself to any style of box, as the invention herein described can be applied to any style with equal efficacy.

Vhat I claim is- 1. In a front or face for a file-box for preventing the conduction of heat to the body of said box, a card-holder formed integrally with the front, consisting of an opening for the exposure of the card, a raised margin around the said opening, a slit in one ofthe said margins for the insertion of the `card, and a backing secured to the rear of the said front, to form, with the said margins, a receptacle for the card, substantially as described.

2. A file-box provided with a face consisting of a double wall separated to provide an 25 air-space, and with perforations to provide for a circulation iu the said airspace, substantially as described.

3. A file-box provided with an open receptacle or body to receive the papers for filing, 3o and a heat-non-conducting and non-combustible front adapted to form, in combination with the adjoining boxes, a fire-proof front for the case containing the said boxes, substantially as described.

In testimony whereof I have hereunto set my hand this 18th day of February, 1888.

VILLIAM R. KINNEAR.

Vitnesses:

W. G. GAYER, F. M. ELLIS. 

